Hi I have a mac pro 3.1 running OSX 10.11.6 have a continuous noise, I have cleaned it with air duster, taken out the heatsink and blasted it with air duster cleaned up the past and applied new paste but the noise is still there it doesn't affects the running of the machine but the noise is annoying, I would like to get rid of the noise and I need help
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MP 1,1-5,1 mac pro 3.1 very loud continuous noise
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Can you describe that noise?
Is it mechanical - clicking or buzzing, or just a continuous high-pitched tone? Do you hear it through the internal speaker?
Is it a noise from a spinning hard drive? (Shut off, then remove all drive sleds, and power on again. Is the noise gone?)
Have you tried booting while preventing each fan from turning? Won't hurt anything when you do that for a few seconds, just to verify that no fan is causing your extra noise.
If none of that helps you - have you been able to determine where the noise is located (front area, top, back, etc?)
Is it mechanical - clicking or buzzing, or just a continuous high-pitched tone? Do you hear it through the internal speaker?
Is it a noise from a spinning hard drive? (Shut off, then remove all drive sleds, and power on again. Is the noise gone?)
Have you tried booting while preventing each fan from turning? Won't hurt anything when you do that for a few seconds, just to verify that no fan is causing your extra noise.
If none of that helps you - have you been able to determine where the noise is located (front area, top, back, etc?)
I hope you mean "fan"...
You can open the side door, and try to decide WHICH fan is making all that noise. There's fans in three locations:
One in the rear, two in front, and one in the top of your Mac Pro, in front of the power supply.
One way to do this: Shut your MacPro OFF. Open the side door. Move the Mac Pro so you can easily look inside that side opening.
Press and release the power button. If the fan is always noisy, it should be easy to find out the location of that noise.
Front? Rear? Top (power supply)
I'm pretty sure that there are two front fans (on the same assembly). You might be able to source an individual fan with the part number on the fan itself, but may be easier to just replace the fan assembly (with both fans)
Found this: https://www.dvwarehouse.com/922-849...ard-Guide-for-Mac-Pro-Early-2008-p-37629.html
Seems pretty cheap right now
Found this: https://www.dvwarehouse.com/922-849...ard-Guide-for-Mac-Pro-Early-2008-p-37629.html
Seems pretty cheap right now
Ok so Mac Pro 3,1's have 4 fans total. Two in the front, 1 in the back behind the memory cage, and one in the power supply. You're going to need to determine where this noise is actually coming from and determine which fan it is. If you use Macs Fan Control, you can adjust each individual fan speed and see which one changes the sound pitch.
